What Is the Long 445 Tractor PTO Rating (HP Specs)
The Long 445 is commonly listed as a 45-hp tractor with a 540-rpm PTO and about 40 PTO horsepower. The 45-hp figure describes engine output, not the power available at the PTO. Since published PTO figures vary and individual tractors may differ, check the tractor’s manual and identification information before choosing an implement.
It is easy to see “45 hp” in a listing and assume an implement needing 45 PTO horsepower will be a good match. That can lead to confusion: engine horsepower and PTO horsepower are different ratings, and a PTO implement uses power delivered through the tractor’s shaft.
For the Long 445, the useful starting point is a commonly reported PTO figure of around 40 hp, with a 540-rpm PTO. Treat that as a guide, not a guaranteed measured rating for every tractor. The exact rating and operating instructions for your machine should take priority.
Long 445 PTO Rating and Horsepower Specs
The Long 445 is commonly described as a 45-engine-hp tractor with a 540-rpm PTO and roughly 40 PTO horsepower. The PTO figure is less consistent across published references, so verify your tractor’s rating before selecting equipment or judging its performance.
| Specification | Commonly listed figure | What it means |
|---|---|---|
| Engine horsepower | 45 hp | Engine output, not power delivered at the PTO |
| PTO horsepower | About 40 hp | Commonly advertised PTO output; not a guaranteed figure for every tractor |
| PTO speed | 540 rpm | Nominal speed for compatible PTO implements |
| Engine type | 3-cylinder diesel commonly listed | Confirm the specific engine on its identification plate |
Horsepower tells you how much work a tractor can do over time. PTO horsepower refers to power available through the power take-off shaft, which drives equipment such as a mower or other PTO-powered implement. Because the PTO takes power from the engine through the tractor’s drive system, the PTO figure is not the same as engine horsepower.
The Long 445 is commonly listed with a 3-cylinder diesel engine, but specifications can differ by production version or source. The engine plate and the tractor’s records are more useful than assuming every machine with a Long 445 badge has identical components.
Why published PTO figures can differ
A published PTO horsepower number may come from a test, a specification table, or a seller’s listing. Sources do not always explain their test basis, and an older tractor’s present-day condition can affect what it delivers. So “about 40 PTO hp” is a useful reference, not proof that a particular tractor will produce exactly 40 hp.
Key takeaway: Use 45 hp to understand the commonly listed engine rating. For implement matching, focus on PTO horsepower, PTO speed, and the manual for your specific tractor.
PTO Rating, Implement Compatibility & Safety Preparation
Implement compatibility depends on more than a horsepower number. Check the implement’s required PTO speed and power against the tractor’s manual, and confirm that the shaft and guards fit correctly. A suitable rating does not make an unsafe or poorly matched driveline safe to use.
Before buying or attaching an implement, compare its label or manual with the tractor information. The implement should be designed for the tractor’s PTO speed, and its power demand should leave a reasonable operating margin. Avoid choosing equipment whose stated requirement is equal to the commonly advertised 40 PTO hp without first confirming the tractor’s actual rating and the implement maker’s guidance.
| Implement requirement | How to assess it on a Long 445 |
|---|---|
| 540-rpm PTO and demand below the tractor’s verified rating | A possible match, subject to the tractor and implement manuals |
| 540-rpm PTO and demand close to about 40 hp | Verify carefully; do not assume the tractor has extra capacity |
| Demand above the tractor’s verified PTO rating | Do not treat it as a suitable match |
| PTO speed other than 540 rpm | Do not connect unless the tractor and implement manuals confirm compatibility |
Those rows are decision examples, not ratings for specific implements. A mower, tiller, or other machine can have different power needs depending on its design and working conditions. Use the implement maker’s stated requirement rather than guessing from its size or appearance.
Check the tractor and driveline before coupling
Park on level ground, set the brake, stop the engine, and remove the key before attaching equipment. Check that the PTO master shield and driveline guards are present and in good condition. Inspect the tires, brakes, hitch, and fluid levels as directed by the operator’s manual.
Then confirm the implement’s shaft can connect properly without being too long or too short through the hitch’s range of movement. Secure the driveline as specified by its maker. Keep other people clear while attaching equipment, and do not use a PTO shaft with missing guards.
A rotating shaft or exposed universal joint can catch clothing, hair, or a limb. Entanglement can cause fatal injury in seconds. Never step over a rotating shaft or reach near one. If a guard is missing or damaged, do not run the PTO until it is repaired or replaced.
Worked implement-matching examples
These examples show how to compare ratings; they are not reports of field tests or guarantees of performance. In each case, the tractor’s verified manual and the implement maker’s instructions come first.
- A 540-rpm implement listed below the verified PTO rating: It may be a reasonable candidate, but check the machine’s manual, driveline fit, and operating conditions.
- A 540-rpm implement listed near 40 PTO hp: Treat the match with caution. The Long 445’s commonly advertised figure is not a guaranteed output for your tractor.
- An implement listed above the verified PTO rating: Do not assume the engine’s 45-hp figure makes it suitable. The implement calls for PTO power, not engine horsepower.
Next step: If the implement’s requirement is unclear, ask its manufacturer or dealer for the PTO horsepower and speed requirements before connecting it.
Field Operation and 540-rpm PTO Use
The Long 445’s commonly listed PTO speed is 540 rpm. That is the PTO shaft’s nominal operating speed, not the engine speed. Follow the tractor manual to find the engine speed setting that produces 540 PTO rpm on your specific machine.
Start from the operator’s seat and keep people clear of the implement. Engage the PTO at low engine speed, then raise engine speed to the setting specified in the manual for 540-rpm operation. Do not guess at the engine setting: it can vary with the tractor, and the shaft’s target speed is not a direct statement of engine rpm.
While working, avoid abrupt PTO engagement and overloading the implement. If the tractor struggles, the implement slows, or the engine labors, reduce the load or stop and check the setup. Do not respond by forcing the machine to keep working.
Avoid sharp turns if they cause the driveline to bind or reach its movement limit. The correct turning range depends on the implement and shaft setup, so follow the equipment maker’s instructions. Keep hands, clothing, and loose items away from the PTO and all moving parts whenever the tractor is running.
Key takeaway: The goal is a compatible implement turning at its specified PTO speed, not simply an engine running at a guessed rpm.
Inspection, Lubrication & Driveline Maintenance
PTO maintenance helps keep the tractor and implement connected safely. Follow the Long 445 operator’s manual and the driveline maker’s instructions for inspection and lubrication intervals; do not assume a single schedule applies to every shaft or tractor version.
Before use, look for damage, missing fasteners, worn parts, and guards that do not move or cover the shaft as intended. Check the PTO area and driveline for dirt or other buildup. Lubricate the driveline only at the points and intervals stated in its instructions.
If you notice a damaged guard, unusual vibration, or a driveline that binds, stop work and address the problem before operating again. Do not remove a shield to make a connection easier or continue using a damaged shaft. When the specific maintenance interval or lubricant is uncertain, check the manuals rather than guessing.
Confirm the tractor’s exact version
Long 445 specifications can vary by production version, and online listings may repeat figures without identifying their source. Compare the tractor’s model and serial information, engine plate, and operator’s manual. If those records do not agree with a seller’s description, use the tractor’s documentation or contact a qualified dealer for clarification.
Shutdown, Cleaning & Seasonal Storage
Safe PTO shutdown means stopping all rotation before approaching the implement. Disengage the PTO, lower the implement as directed, stop the engine, remove the key, and wait for moving parts to stop fully before uncoupling, clearing, or cleaning anything.
Do not rely on the engine being off as proof that every part has stopped moving. Keep clear until the implement and shaft are still. If material is wrapped around a component or blocking the implement, follow its manual’s clearing procedure only after the tractor is shut down and all motion has stopped.
For storage, follow the tractor and implement manuals. Keep guards in place, and store the driveline so it is protected from damage. Before the next use, inspect the PTO area, guards, and shaft again.
In short: The Long 445 is commonly listed at 45 engine hp, about 40 PTO hp, and 540-rpm PTO speed. Use the tractor’s own manual and the implement’s stated requirements to make the final match.
Long 445 PTO Rating FAQs
How much PTO horsepower does a Long 445 have?
The Long 445 is commonly advertised at about 40 PTO horsepower. Published figures vary, so verify the rating for your specific tractor before choosing an implement.
Is the Long 445 a 45-hp tractor?
It is commonly listed as a 45-engine-hp tractor. That number is not the same as PTO horsepower.
What is the Long 445 PTO speed?
The Long 445 is commonly listed with a 540-rpm PTO. Confirm the PTO speed and operating instructions in your tractor’s manual.
Does 45 engine hp mean 45 PTO hp?
No. Engine horsepower describes engine output, while PTO horsepower describes power available through the PTO shaft. Do not use the engine rating as the implement’s PTO power allowance.
Can a 40-PTO-hp implement run on a Long 445?
Do not assume so based only on the commonly advertised figure of about 40 PTO hp. Check the tractor’s verified rating, the implement manual, and the conditions in which it will be used.
Is the Long 445’s engine always a 3-cylinder diesel?
A 3-cylinder diesel is commonly listed, but versions or published specifications may differ. Check the engine identification plate on your tractor.
What engine rpm gives the Long 445 540 PTO rpm?
Use the engine-speed setting stated in the operator’s manual. The PTO’s 540-rpm rating does not, by itself, tell you the correct engine rpm.
What should I check before connecting a PTO implement?
Check the PTO speed and power requirements, shaft fit and length, hitch setup, and condition of all shields and guards. Park, set the brake, stop the engine, and remove the key before coupling.
Is it safe to use the PTO with a missing guard?
No. Keep the PTO master shield and driveline guards installed and in good condition. Do not operate with missing or damaged guards.
What should I do if the PTO implement bogs down?
Stop and assess the load and setup. Do not force the tractor to keep working; check the implement’s requirements and the tractor’s manual before resuming.
(This article was written by one of our staff writers, Evan Bradley. Visit our Meet the Team page.)
